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THE SSDF RATING LIST 2021-07-28 156884 games played by 406 computers
Rating + - Games Won Oppo
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1 Lc0 0.26.3 Cuda(67362) 3060Ti 3581 41 -39 320 64% 3479
2 Stockfish 13 x64 1800X 3.6 GHz 3573 44 -40 320 70% 3428
3 Stockfish 12 NNUE x64 1800X 3.6 GHz 3568 32 -30 520 64% 3468
4 Dragon by Komodo x64 1800X 3.6 GHz 3557 34 -32 460 63% 3457
5 Stockfish 11 x64 1800X 3.6 GHz 3545 36 -34 450 70% 3399
6 Stockfish 10 x64 1800X 3.6 GHz 3520 25 -24 880 68% 3384
7 Dragon Komodo 2 MCTS x64 1800X 3.6 GHz 3503 54 -55 160 49% 3499
8 Stockfish 9 x64 1800X 3.6 GHz 3480 26 -24 882 70% 3334
9 Komodo 13.1 x64 1800X 3.6 GHz 3468 30 -29 560 62% 3385
10 Komodo 13.02 x64 1800X 3.6 GHz 3461 30 -29 600 65% 3350
11 Komodo 14 x64 1800X 3.6 GHz 3461 34 -34 400 52% 3449
12 Komodo 12.3 x64 1800X 3.6 GHz 3451 27 -26 760 66% 3333
13 Stockfish 9 x64 Q6600 2.4 GHz 3443 32 -31 480 56% 3399
14 Komodo 12.3 x64 Q6600 2.4 GHz 3431 36 -34 400 61% 3355
15 Stockfish 8 x64 1800X 3.6 GHz 3425 20 -19 1440 71% 3269
16 Dragon Komodo MCTS x64 1800X 3.6 GHz 3420 41 -41 280 52% 3413
17 Komodo 13.2.5 MCTS x64 1800X 3.6 GHz 3417 50 -48 200 56% 3374
18 Stockfish 8 x64 Q6600 2.4 GHz 3409 31 -30 560 65% 3299
19 Pedone 3 x64 1800X 3.6 GHz 3399 44 -45 240 43% 3442
20 Komodo 13.02 MCTS x64 1800X 3.6 GHz 3397 31 -30 520 57% 3345
21 Booot 6.4 x64 1800X 3.6 GHz 3368 36 -36 360 51% 3365
22 Deep Shredder 13 x64 1800X 3.6 GHz 3356 24 -24 880 64% 3255
23 Pedone 3 x64 Q6600 2.4 GHz 3317 51 -48 200 60% 3248
24 Pedone 2.1 x64 1800X 3.6 GHz 3305 42 -46 280 32% 3420
25 Vajolet2 2.8 x64 1800X 3.6 GHz 3294 27 -28 650 38% 3377
26 Arasan 21.2 x64 1800X 3.6 GHz 3291 25 -26 800 36% 3388
27 Wasp 4 x64 1800X 3.6 GHz 3265 42 -45 280 33% 3376
28 Pedone 2.1 x64 Q6600 2.4 GHz 3222 46 -44 240 59% 3159
29 Deep Hiarcs 14 1800X 3.6 GHz 3218 24 -25 840 38% 3298
30 Deep Rybka 4 x64 Q6600 2.4 GHz 3198 19 -18 1448 64% 3100
31 Chiron 3.01 x64 Q6600 2.4 GHz 3177 27 -27 656 45% 3214
32 Naum 4.2 x64 Q6600 2.4 GHz 3146 21 -21 1123 60% 3078
33 Deep Junior Yokohama x64 Q6600 2.4 GHz 3125 22 -22 1010 42% 3183
34 Spike 1.4 Q6600 2.4 GHz 3106 15 -15 2031 52% 3094
35 Hiarcs 14 Athlon 1.2 GHz 3099 29 -29 560 55% 3064
36 Deep Fritz 13 Q6600 2.4 GHz 3097 24 -24 826 55% 3064
37 Revelation 2 Hiarcs 14.1 PXA320 800 MHz 2925 47 -45 228 56% 2883
38 Chessmaster King 3.5 x64 Q6600 2.4 GHz 2860 24 -25 932 30% 3008
39 Revelation Hiarcs 13.3 PXA255 500 MHz 2771 57 -52 177 66% 2660
40 Revelation Shredder 12 PXA255 500 MHz 2705 60 -58 140 56% 2665
41 Revelation Rybka 2.2 PXA255 500 MHz 2633 45 -43 260 63% 2545
42 Revelation Deep Sjeng 3 PXA255 500 MHz 2598 62 -67 120 41% 2662
43 Millennium The King Exclusive 300 MHz 2524 55 -53 164 55% 2492
44 Revelation Ruffian 2.1 PXA255 500 MHz 2347 68 -71 100 45% 2384
45 Millennium ChessGenius Excl. M7 300 MHz 2249 54 -51 180 59% 2183
46 Mephisto London 68030 33 MHz 2194 31 -31 482 50% 2191
47 Millennium ChessGenius Pro M4 120 MHz 2163 59 -54 160 63% 2067
48 Mephisto London 68020 12 MHz 2103 73 -64 115 67% 1984
49 Millennium ChessGenius ARM M4 48 MHz 2070 45 -43 251 58% 2016
50 Mephisto London 68000 12 MHz 2005 59 -58 140 53% 1981
1 Lc0 0.26.3 Cuda(67362) 3060Ti, 3581
Stoc13 1800X 20-20 SF12NU 1800X 20,5-19,5 Dragon 1800X 21-19
Dra2MC 1800X 25-15 Stock9 1800X 25-15 Ko14 1800X 27-13
Ped3 1800X 33-7 Arasa21 1800X 33-7
2 Stockfish 13 x64 1800X 3.6 GHz, 3573
LC0 3060Ti 20-20 SF12NU 1800X 20-20 Dragon 1800X 22-18
Komo11 1800X 29,5-10,5 Boo64 1800X 33,5-6,5 Booot6 1800X 31-9
Ped21 1800X 35-5 Arasa21 1800X 34,5-5,5
7 Dragon Komodo 2 MCTS x64 1800X 3.6 GHz, 3503
LC0 3060Ti 15-25 SF12NU 1800X 15,5-24,5 Stock8 1800X 23-17
Dra MC 1800X 24,5-15,5
16 Dragon Komodo MCTS x64 1800X 3.6 GHz, 3420
SF12NU 1800X 14,5-25,5 Dragon 1800X 16-24 Dra2MC 1800X 15,5-24,5
Ped3 1800X 20-20 Ped21 1800X 26,5-13,5 Arasa21 1800X 23-17
Wasp4 1800X 29,5-10,5
19 Pedone 3 x64 1800X 3.6 GHz, 3399
LC0 3060Ti 7-33 SF12NU 1800X 11-29 Dragon 1800X 12,5-27,5
Dra MC 1800X 20-20 Ped21 1800X 22-18 DHiar14 1800X 31,5-8,5
23 Pedone 3 x64 Q6600 2.4 GHz, 3317
Komo12 Q6600 15-25 DShre13 Q6600 17-23 Vaj28 Q6600 27-13
Ped21 Q6000 24-16 DShre11 Q6600 36,5-3,5
24 Pedone 2.1 x64 1800X 3.6 GHz, 3305
Stoc13 1800X 5-35 SF12NU 1800X 5-35 Ko14 1800X 9-31
Dra MC 1800X 13,5-26,5 Ped3 1800X 18-22 Boo64 1800X 12,5-27,5
Wasp201 1800X 27-13
28 Pedone 2.1 x64 Q6600 2.4 GHz, 3222
Ped3 Q6600 16-24 DShre13 Q6600 9,5-30,5 Wasp4 Q6600 24-16
Hia13.2 Q6600 28-12 Craf25 Q6600 33,5-6,5 DShre11 Q6600 30-10
48 Mephisto London 68020 12 MHz, 2103
MCG Ex 5,5-14,5 MCG 12-8 Star Sapphire 13,5-6,5
Sapphire II 1,5-2,5 Diablo 68000 9-2 Polgar 5 MHz 17-3
Rebell 5 MHz 18-2
For this summer rating list we are able to present 9 new entrants.
First one out is also the first chess program we have ever tested for the
rating list which have utilized a graphic card. The new number one on this
rating list is Leela Chess Zero, which have recieved an impressive rating of
3581 after 320 games played. We have tested Leela Chess Zero with a
Nvidia RTX 3060 Ti graphic card. We have used the Lc0 0.26.3 version and have
used the 30 blocks x 384 filter net with the number 67362. As opening book we
have used the free "Perfect2021.abk" opening book by Sedat Canbaz.
Trailing just 8 points below, with a rating of 3573 after 320 played games,
is the 13th version of Stockfish. Like its former version, it uses
neural network architecture (NNUE). We have chosen to omit
the NNUE-nomenclature from the name, since NNUE is the default and strongest
setting. We have used the latest free opening book by Fauzi Akram Dabat for
the testing of Stockfish 13 and it is named "Aggressive 4.9 by Fauzi.abk".
In this rating list we can also present two new MCTS-versions of Komodo, both
utilizing the NNUE-technology. The first one which we tested was
Dragon Komodo (1) MCTS, and due to some difficulties with the AVX2 version,
we had to test the non-AVX2 version of Dragon Komodo (1) MCTS.
After 280 played games and with a rating of 3420, it has positioned itself
3 points ahead of its 13.2.5-version, which was non-NNUE, and also 137 points
below its non-MCTS version of Dragon Komodo (1). The gap between the two
(non-MCTS/MCTS) was not as significant when we tested the 13.02 version of
Komodo, and back then it was 64 points between the two versions.
We have also tested the new Dragon Komodo 2 MCTS-version from Mark Lefler and
Larry Kaufman. This version seems to perform better and we have also have had
no problems in getting the AVX2 version to work this time. It is relatively
early on in the testing, but Dragon Komodo 2 MCTS has recieved a rating of 3503
after the first 160 games played. This makes it 83 points stronger than the
first version and also just 54 points shy of its non-MCTS version of Dragon
Komodo (1). We have used the same opening book for the testing of both
Dragon Komodo MCTS-versions, namely Erdogan Günes opening book "out10-35.bin".
On this rating list we can also present four new entrants from Fabio Gobbato,
tested on both the 1800X and Q6600 hardware levels. First one we tested was the
Pedone 2.1 version. This version was non-NNUE and has managed to get a rating
of 3222 after 240 games on our Q6600 level. On our 1800X level, it has recieved
a rating of 3305 after 280 played games. The difference between the two hardware
levels is 83 points.
Next one out was the Pedone 3.0 version, which uses NNUE in its search. Likewise
with other NNUE-programs on the list, we have chosen to omit the NNUE-nomenclature,
since this is the strongest setting for their respective versions. Pedone 3.0 has
recieved a rating of 3399 after 240 games played on our 1800X level, and a rating
of 3317 after 200 games played on the Q6600 level. The difference between the two
hardware levels are nearly the same as the 2.1 version and it is 82 points.
The gap between the non-NNUE version of 2.1 and the NNUE-version of 3.0, is
95 points for the Q6600-level and 94 points for the 1800X-level! We have used
Pedones own opening book for the testing of version 2.1 and 3.0.
Last one out is an oldie which at last has managed to get on the rating list
with some manual testing. The dedicated chess computer Mephisto London 68020
at 12 MHz, is a module which can be used in Mephistos modular boards. The modular
boards included the Modular/Exclusive/München and Bavaria wooden chess boards.
The software in the London 68020 is the Genius 3.0 program by Richard Lang, which
on a PC (Pentium 90 MHz) managed to beat Garry Kasparov in a rapid game 1994 in
London. After the first 115 games, London 68020 has managed to get a rating
of 2103. This is nearly 100 points stronger than the 68000-version and also 91
points weaker than the London 68030 version at 33 MHz. It trails the Mephisto
Berlin Pro 68020 at 24 MHz, with 25 points, but it is the second strongest 68020
program we have ever tested, 39 points ahead of its Vancouver 68020-version.
We are at the moment testing several different programs which barely missed
this rating list, but will feature in the upcoming rating list which we plan
to release as soon as they have enough games to be presented. Hopefully our
next list will be out sometime in the autumn.
Lars Sandin